James, 

After changing settings for reg.exe and re-capturing the Win7 image I was able 
to get smaller pagefile.sys file for new reservations. Thank you for the help.  


--
Dmitri Chebotarov
Virtual Computing Lab Systems Engineer, TSD - Ent Servers & Messaging
223 Aquia Building, Ffx, MSN: 1B5
Phone: (703) 993-6175
Fax: (703) 993-3404


On Thursday, March 29, 2012 at 9:06 , Dmitri Chebotarov wrote:

> James, 
> 
> Thank you for the hint. I will tweak settings in enable_pagefile() to get 
> right results...
> 
> 
> --
> Dmitri Chebotarov
> Virtual Computing Lab Systems Engineer, TSD - Ent Servers & Messaging
> 223 Aquia Building, Ffx, MSN: 1B5
> Phone: (703) 993-6175
> Fax: (703) 993-3404
> 
> 
> On Wednesday, March 28, 2012 at 18:16 , James O'Dell wrote:
> 
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > What I believe is happening is during the image creation VCL disables
> > the pagefile, reboots, and then removes the pagefile. This makes for
> > a smaller image file.
> > 
> > Then, during the image provisioning, the pagefile is re-enabled using
> > the default settings (which is pagefile = ram size).
> > 
> > If you look at the 'Windows.pm' there is a sub function called
> > "enable_pagefile". There is a "reg.exe" call used by cygwin that
> > looks like it's re-enabling the pagefile to the default settings.
> > 
> > Maybe you could zero out the function, so that it doesn't make the call
> > to cygwin. Or, maybe, modify the "reg.exe" string to limit the
> > registry's setting so that the new pagefile is just a couple Gigs.
> > 
> > In the past, I've found registry settings by dumping the registry to a
> > text file, making the changes, and then dumping the registry again.
> > You should be able to find the setting by comparing the files
> > differences.
> > 
> > Then roll your own "reg.exe" string.. (or I guess you could just Google
> > the setting, lol)
> > 
> > Hope this helps,
> > 
> > __Jim
> > 
> > 
> > On 3/28/2012 2:34 PM, Dmitri Chebotarov wrote:
> > > James 
> > > 
> > > Yes, I have changed the setting for pagefile. But it resets to default 
> > > after I capture image and make reservation.
> > > 
> > > I've also commented disable_pagefile() in Windows.pm (and restarted 
> > > vcld), but it doesn't help. New image still has default pagefile setting.
> > > 
> > > Is there another place in the code where I could stop VCL from changing 
> > > pagefile settings?
> > > 
> > > Thanks.
> > > 
> > > --
> > > Dmitri Chebotarov
> > > Virtual Computing Lab Systems Engineer, TSD - Ent Servers & Messaging
> > > 223 Aquia Building, Ffx, MSN: 1B5
> > > Phone: (703) 993-6175
> > > Fax: (703) 993-3404
> > > 
> > > 
> > > On Wednesday, March 28, 2012 at 16:19 , James O'Dell wrote:
> > > 
> > > Have you tried disabling/reducing the page file before making the image?
> > > 
> > > > > > Control Panel
> > > > > > 
> > > > > > System and Security
> > > > > > 
> > > > > > System
> > > > > > 
> > > > > > Click to open System.
> > > > > > 
> > > > > > In the left pane, click Advanced system settings. If you are 
> > > > > > prompted for an administrator password or confirmation, type the 
> > > > > > password or provide confirmation.
> > > > > > 
> > > > > > On the Advanced tab, under Performance, click Settings.
> > > > > > 
> > > > > > Click the Advanced tab, and then, under Virtual memory, click 
> > > > > > Change.
> > > > > > 
> > > > > > Clear the Automatically manage paging file size for all drives 
> > > > > > check box.
> > > > > > 
> > > > > > Under Drive [Volume Label], click the drive that contains the 
> > > > > > paging file you want to change.
> > > > > > 
> > > > > > Click Custom size, type a new size in megabytes in the Initial size 
> > > > > > (MB) or Maximum size (MB) box, click Set, and then click OK.
> > > 
> > > This should make a registry change, that hopefully prevents Windows from
> > > "Automatically manage paging file size for all drives"
> > > 
> > > "Automatically" typically makes the page file the same as the available 
> > > ram.
> > > 
> > > __Jim
> > > 
> > > On 3/28/2012 12:57 PM, Dmitri Chebotarov wrote:
> > > > > > Hi, All 
> > > > > > 
> > > > > > I'm using Windows 7 Ent image with VCL/xCAT on a blade with 48GB of 
> > > > > > memory. 
> > > > > > Before capturing the image I set page file to 2GB, once capture is 
> > > > > > done, the new reservation ends up with 48GB page file.
> > > > > > This leave little space left to install new applications.
> > > > > > 
> > > > > > I found that Windows.pm calls disable_pagefile() on line 474 during 
> > > > > > image capture. 
> > > > > > Would it be OK to disable this function? 
> > > > > > 
> > > > > > Thank you. 
> > > > > > 
> > > > > > --
> > > > > > Dmitri Chebotarov
> > > > > > Virtual Computing Lab Systems Engineer, TSD - Ent Servers & 
> > > > > > Messaging
> > > > > > 223 Aquia Building, Ffx, MSN: 1B5
> > > > > > Phone: (703) 993-6175
> > > > > > Fax: (703) 993-3404
> > > > > > 
> > > > > 
> > > > 
> > > 
> > > 
> > 
> > 
> > - -- 
> > Jim O'Dell
> > Network Analyst
> > California State University Fullerton
> > Email: jod...@fullerton.edu (mailto:jod...@fullerton.edu)
> > Phone: (657) 278-2256
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> 
> 

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